Stock:
Along with the aft butt stock end that appears to be vertically laminated walnut (fore) and maple (aft), walnut is what I will use for the new stock.
Ocooch Hardwoods has just what I'm looking for: a 1-13/16" thick (surfaced) x 8" wide x 60" long
walnut board with straight grained wood, Select or Better grade, as clear of knots and voids as possible. Somewhat pricey, but I believe I can cut 2 stock blanks from a single board with careful nesting. McMaster-Carr has just what I need in
brass or bronze shim stock. I'll order both as soon as I get the rebored/relined barrel back from Bob Hoyt.
Barrel:
I'd read here on TMF that the way to get ahold of Bob is to call early and let it ring until he picks up. So I called @ 8:15 EDT last Thursday 07/18 and he picked up after just 2 rings. He understood what I hope to have done and is clearly very knowledgable. I was thinking of composing a reasonably detailed letter with what I want, and you've both confirmed that approach and also provided some extra detail. I think 55 caliber is good; I don't want to make musket balls. I hope to get the letter written, pack it all up, and ship it tomorrow 07/25.
Cleaning:
Having cleaned the barrel exterior, I turned my attention to cleaning the lock parts. Using a quart of Evapo-Rust (highly recommended to remove rust and nothing else) with a 2.5 L ultrasonic cleaner, wire brushes, and couple dental picks, I spent ~6 hours cleaning snaphaunce lock parts.
The results are nothing short of amazing. So much so that I question if the any of the parts have ever been so clean, even when they were first made. Seriously - see for yourself.
Cracking:
Now that the parts are really clean, cracks and pitting previously hidden by dirt, grime, and rust are quite visible. I wet sanded the lock plate exterior up to 400 grit, but there's still a few cracks and pits showing. I am not too concerned about the plate or the battery/frizzen cracks and pits, but I am concerned with the mainspring cracking where it contacts the tumbler and the wear on the tumbler.
Who knows how long they've been that way? I've searched for ways to "heal" the cracks with little success, since heating the spring adversely affects its hardness and temper. I'm not really sure what to do at this point, but I'll keep searching.
-Bob